Association Mapping of Quantitative Trait Loci for Grain Size in Introgression Line Derived from Oryza Rufipogon

Hussain, Kashif; Zhang, Ying-Xing; Anley, Workie; Riaz, Aamir; Abbas, Adil; Rani, Mohammad Hasanuzzaman; Wang, Hong; Shen, Xihong; Zhang, Yingxin; Cheng, Shifeng

doi:10.1016/j.rsci.2020.04.007

Cited by 10 publications

(2 citation statements)

References 48 publications

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“…The mean linkage disequilibrium (LD) decay for the genome in the BMW population is 9.3 cM, thus, considering a fixed interval of ± 5 Mb on both sides of a peak marker resulted in an excessive number of gene annotations (Stadlmeier et al, 2018 ). In this study, the fixed interval was reduced to ± 500 kb (1 Mb) based on several other studies in which the region on either side of the peak marker of a QTL was reduced to 100 kb (flax) (You and Cloutier, 2020 ), 2 kb (wheat) (Juliana et al, 2018 ), 2 kb (wheat) (Muqaddasi et al, 2020 ), or 100 kb (rice) (Hussain et al, 2020 ). However, examination of this interval led to the annotation of several leucine-rich repeats, NB-ARC domains, kinase domains, and ABC transporters.…”

Section: Discussionmentioning

confidence: 89%

Quantitative Trait Loci Mapping of Adult Plant and Seedling Resistance to Stripe Rust (Puccinia striiformis Westend.) in a Multiparent Advanced Generation Intercross Wheat Population

et al. 2021

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Stripe rust caused by the biotrophic fungus Puccinia striiformis Westend. is one of the most important diseases of wheat worldwide, causing high yield and quality losses. Growing resistant cultivars is the most efficient way to control stripe rust, both economically and ecologically. Known resistance genes are already present in numerous cultivars worldwide. However, their effectiveness is limited to certain races within a rust population and the emergence of stripe rust races being virulent against common resistance genes forces the demand for new sources of resistance. Multiparent advanced generation intercross (MAGIC) populations have proven to be a powerful tool to carry out genetic studies on economically important traits. In this study, interval mapping was performed to map quantitative trait loci (QTL) for stripe rust resistance in the Bavarian MAGIC wheat population, comprising 394 F6 : 8 recombinant inbred lines (RILs). Phenotypic evaluation of the RILs was carried out for adult plant resistance in field trials at three locations across three years and for seedling resistance in a growth chamber. In total, 21 QTL for stripe rust resistance corresponding to 13 distinct chromosomal regions were detected, of which two may represent putatively new QTL located on wheat chromosomes 3D and 7D.

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Section: Discussionmentioning

confidence: 89%

Quantitative Trait Loci Mapping of Adult Plant and Seedling Resistance to Stripe Rust (Puccinia striiformis Westend.) in a Multiparent Advanced Generation Intercross Wheat Population

et al. 2021

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“…So far, the e ciency of QTL cloning has been improved greatly using CSSLs. Such as, qPPP2 for panicles per plant (Tao et al 2016), qSP1 for spikelets per panicle (Ma et al 2019), qGL3 for grain length (Kashif et al 2020), qKL3 for kernel length (Wang et al 2020a), qGW1-2, qGW3-2 and qGW4-1 for grain width (Li et al 2019), qGWT5 and qTGW11 for 1000-grain weight (Okada et al 2018;Wang et al 2021) et al Although these genes revealed some molecular regulatory mechanisms of rice yield traits. However, due to separating of favorite alleles in different varieties (Zheng et al 2020;Dhat et al 2021), it is necessary to identify more QTLs for yield traits using novel CSSL developed from different elite cultivars.…”

Section: Introductionmentioning

confidence: 99%

Identification, Pyramid and Candidate gene of QTL for Yield-related Traits Based on Rice CSSLs in Indica Xihui18 Background

Sun

Xiang

et al. 2021

Preprint

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Chromosome segment substitution line (CSSL) in rice is important for functional analysis and design breeding of target genes. Here, a novel rice CSSL-Z431 was identified from indica restorer line Xihui18 as recipient and Huhan3 as donor. Z431 contained six segments from Huhan3, with an average substitution length of 2.12 Mb. Compared with Xihui18, Z431 increased panicles per plant (PN) and displayed short-wide grains. The short-wide grain of Z431 were caused by reducing of cell length and increasing of cell width in the glume. Then, thirteen QTLs were identified in a secondary F2 population derived from Xihui18/Z431. Among them, six QTLs (qPN3, qGL3, qGW5, qRLW2, qRLW3, qGWT-5-2) were validated by four single-segment substitution lines (SSSLs, S1-S4) developed in F3. In addition, thirteen QTLs (qPN1, qPN2, qPL1, qPL2, qGPP1, qGPP2, qGL2, qGW1, qGW2, qGW3, qRLW5-2, qRLW1, qGWT2) were detected by these SSSLs, while not be identified in the F2 population from Xihui18/Z431. Increase of panicles per plant in Z431 was controlled by qPN3, qPN1 and qPN2. OsIAGLU should be the candidate gene for qPN3 by DNA sequencing. The short-wide grain of Z431 was controlled by qGL3, qGL2, qGW5, qGW2 and qGW3. By sequencing between Xihui18 and according SSSL, three candidate genes for qGL3 and two candidate genes for qGW5 were identified, respectively. In addition, pyramid of different QTLs (qPN1and qPN3; qPN2 and qPN3 etc.) yielded different epistatic effects. These results lay good foundation in molecular mechanism analysis of unreported genes and rice molecular design breeding.

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Perception of Advanced Techniques in Conservation and Utilization of Wild Genetic Resources of Rice

Ratnasekera

Tennakoon

Sandamal

et al. 2022

Plant Genetic Resources, Inventory, Collection and Conservation

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Association Mapping of Quantitative Trait Loci for Grain Size in Introgression Line Derived from Oryza Rufipogon

Cited by 10 publications

References 48 publications

Quantitative Trait Loci Mapping of Adult Plant and Seedling Resistance to Stripe Rust (Puccinia striiformis Westend.) in a Multiparent Advanced Generation Intercross Wheat Population

Quantitative Trait Loci Mapping of Adult Plant and Seedling Resistance to Stripe Rust (Puccinia striiformis Westend.) in a Multiparent Advanced Generation Intercross Wheat Population

Identification, Pyramid and Candidate gene of QTL for Yield-related Traits Based on Rice CSSLs in Indica Xihui18 Background

Perception of Advanced Techniques in Conservation and Utilization of Wild Genetic Resources of Rice

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